Method for controlling herbaceous weeds

ABSTRACT

this invention relates to the control of herbaceous weeds such as bindweed, maidencane, arrowhead and sedges by applying to the locus of the weeds a compound selected from compounds having the following formula ##STR1## where R is alkyl of 1 to 3 carbon atoms, allyl or benzyl; 
     R 1  is M, alkyl of 1 to 3 carbon atoms, alkenyl of 3 to 4 carbon atoms or benzyl; 
     M is lithium, sodium, potassium or ammonium; 
     X is oxygen or sulfur; and 
     Y is oxygen or sulfur 
     With the proviso that when Y is sulfur, X is sulfur.



